基于生态系统服务价值损益的生态安全格局演变分析——以辽宁沿海瓦房店市为例

Abstract

PDF HTML阅读 XML下载 导出引用 引用提醒 基于生态系统服务价值损益的生态安全格局演变分析——以辽宁沿海瓦房店市为例 DOI: 10.5846/stxb201809071916 作者: 作者单位: 辽宁师范大学海洋经济与可持续发展研究中心,辽宁师范大学城市与环境学院,辽宁师范大学海洋经济与可持续发展研究中心,辽宁师范大学海洋经济与可持续发展研究中心,辽宁师范大学城市与环境学院 作者简介: 通讯作者: 中图分类号: 基金项目: 国家自然科学基金项目（41571122）；辽宁省教育厅项目（H201783631，WQ2019020）；辽宁省自然科学基金（20180551194）；辽宁省社会科学规划基金项目（L17CJY003）；辽宁省社科联2019经济社会发展立项项目（2019lslktjd-014）；辽宁师范大学校博士启动（BS2018L007） The evolution of ecological security pattern based on the profit and loss analysis of ecosystem services: taking Wafangdian County as a case Author: Affiliation: Center for Studies of Marine Economy and Sustainable Development of Liaoning Normal University,,Center for Studies of Marine Economy and Sustainable Development of Liaoning Normal University,, Fund Project: 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:生态系统服务是区域生态安全的底线，科学评估其价值变化是合理规划区域土地利用和构建生态安全格局的重要基础，既有研究尚未综合评估多种生态系统服务来判定区域生态基底，目前开展的静态评价也难以反映区域生态安全格局动态变化过程。以辽宁沿海地区——瓦房店市为例，综合运用CASA、RUSLE等模型，并结合生态经济法对2000年和2014年生态系统服务价值进行了科学评估，并依据评估结果构建研究区两期生态安全格局。结果表明：①14年间，除营养物质循环变化不明显外，其余各项生态系统服务价值均呈现不同幅度的损失，其中以水源涵养价值下降趋势最为明显。各土地利用类型来看，林地生态系统服务价值损失达8.74亿元，占损失总量的40%，为各地类之首；②两期单位面积生态系统服务价值均呈现出水域（含海域）高于陆地，山地高于平地的空间分布，且这种不均匀分布趋势在2014年更为明显；③两期生态源地面积分别为1111.40 km2和356.96 km2，生态廊道总长度分别为136.63 km和231.43 km，呈环状分布于源地之间的生态系统服务价值高值谷内。生态系统服务价值的损益情况可对区域生态安全格局构建产生重要影响，研究结果可为瓦房店市城市开发边界与生态保护红线划定提供科学参考。 Abstract:Ecosystem services are the baseline of regional ecological security. Scientific assessment of their value changes is a basis for rationally planning of the regional land use and constructing ecological security pattern. The existing studies did not comprehensively evaluate various ecosystem services to determine regional ecological basements. The current static assessments failed to reflect the dynamic process of regional ecological security patterns. Hence, using CASA, RUSLE, and other models, as well as the ecological economic method, we evaluated the ecosystem service value in Wafangdian County, Liaoning coastal area in 2000-2014. Then, the two-stage ecological security pattern was constructed based on the scientific assessment. The results are as follows:①during the 14 years, except for the inconspicuous change of nutrient recycling value, the other ecosystem service values have showed different degrees of loss, especially for water source conservation value with the worst decline of 44%. In terms of land use type, the value of forestland ecosystem services lost 874 million Yuan, up to 40% of the total loss. ② For the ecosystem services per unit value of the study area in the two periods, water area (including sea) was higher than land, but mountain was higher than flatlands. This uneven spatial distribution was more obvious in 2014. ③ The ecological source areas in 2000 and 2014 were 1111.40 km2 and 356.96 km2, respectively. The total length of the corridors were 136.63 km and 231.43 km. The ring-like corridors were distributed in the high value valley of ecosystem service value among the source areas. The profit and loss of ecosystem service value have an impact on the construction of the regional ecological security pattern. The results can provide a scientific guideline for the delineation of urban development boundary and ecological protection red line in Wafangdian. 参考文献 相似文献 引证文献